I needed a recording of Old Hundred so I turned to Google. The first link I tried led me
HERE.

For those who don't want to follow the link it leads to an exhibition called Lift Every Voice: Music in American Life. It includes pages on Ballads, Hymns & Spirituals, Patriotic Odes, Minstrels & Musicals, Protest Songs, Virginiana, and it finishes with Audio Clips.

It ain't too bad. I'll put this in its own thread too.